/******************************************************************************
 * Copyright 2020 The Firmament Authors. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *****************************************************************************/

#ifndef __RINGBUFFER_H__
#define __RINGBUFFER_H__

#include <stdint.h>

typedef struct {
	uint8_t	static_flag;
	unsigned head;
	unsigned tail;
	unsigned size;
	uint8_t* buff;
} ringbuffer;

ringbuffer* ringbuffer_create(uint32_t size);
ringbuffer* ringbuffer_static_create(uint8_t* buffer, uint32_t size);
uint32_t ringbuffer_getlen(ringbuffer* rb);
uint8_t ringbuffer_putc(ringbuffer* rb, uint8_t c);
uint8_t ringbuffer_getc(ringbuffer* rb);
uint32_t ringbuffer_get(ringbuffer* rb, uint8_t* buffer, uint32_t len);
uint32_t ringbuffer_put(ringbuffer* rb, const uint8_t* buffer, uint32_t len);
void ringbuffer_flush(ringbuffer* rb);
void ringbuffer_delete(ringbuffer* rb);

#endif
